Home / 20,672,311.88-28,527,790.44-11,507,119.76

Finding the Fourth Proportional to 20,672,311.88, 28,527,790.44 and 11,507,119.76

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Solution

The fourth proportional to 20,672,311.88, 28,527,790.44 and 11,507,119.76 is: 15,879,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,311.88 : 28,527,790.44 = 11,507,119.76 : x
  2. Step 2: Convert to fraction form
    20,672,311.88/28,527,790.44 = 11,507,119.76/x
  3. Step 3: Cross multiply
    20,672,311.88x = 28,527,790.44 × 11,507,119.76
  4. Step 4: Simplify right side
    20,672,311.88x = 328,272,701,081,263.12
  5. Step 5: Solve for x
    x = 328,272,701,081,263.12/20,672,311.88
  6. Step 6: Final answer
    x = 15,879,825.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.